// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

// Code generated from the elasticsearch-specification DO NOT EDIT.
// https://github.com/elastic/elasticsearch-specification/tree/907d11a72a6bfd37b777d526880c56202889609e

package types

import (
	"bytes"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"strconv"
)

// ElisionTokenFilter type.
//
// https://github.com/elastic/elasticsearch-specification/blob/907d11a72a6bfd37b777d526880c56202889609e/specification/_types/analysis/token_filters.ts#L245-L258
type ElisionTokenFilter struct {
	// Articles List of elisions to remove.
	// To be removed, the elision must be at the beginning of a token and be
	// immediately followed by an apostrophe. Both the elision and apostrophe are
	// removed.
	// For custom `elision` filters, either this parameter or `articles_path` must
	// be specified.
	Articles []string `json:"articles,omitempty"`
	// ArticlesCase If `true`, elision matching is case insensitive. If `false`, elision matching
	// is case sensitive. Defaults to `false`.
	ArticlesCase Stringifiedboolean `json:"articles_case,omitempty"`
	// ArticlesPath Path to a file that contains a list of elisions to remove.
	// This path must be absolute or relative to the `config` location, and the file
	// must be UTF-8 encoded. Each elision in the file must be separated by a line
	// break.
	// To be removed, the elision must be at the beginning of a token and be
	// immediately followed by an apostrophe. Both the elision and apostrophe are
	// removed.
	// For custom `elision` filters, either this parameter or `articles` must be
	// specified.
	ArticlesPath *string `json:"articles_path,omitempty"`
	Type         string  `json:"type,omitempty"`
	Version      *string `json:"version,omitempty"`
}

func (s *ElisionTokenFilter) UnmarshalJSON(data []byte) error {

	dec := json.NewDecoder(bytes.NewReader(data))

	for {
		t, err := dec.Token()
		if err != nil {
			if errors.Is(err, io.EOF) {
				break
			}
			return err
		}

		switch t {

		case "articles":
			if err := dec.Decode(&s.Articles); err != nil {
				return fmt.Errorf("%s | %w", "Articles", err)
			}

		case "articles_case":
			if err := dec.Decode(&s.ArticlesCase); err != nil {
				return fmt.Errorf("%s | %w", "ArticlesCase", err)
			}

		case "articles_path":
			var tmp json.RawMessage
			if err := dec.Decode(&tmp); err != nil {
				return fmt.Errorf("%s | %w", "ArticlesPath", err)
			}
			o := string(tmp[:])
			o, err = strconv.Unquote(o)
			if err != nil {
				o = string(tmp[:])
			}
			s.ArticlesPath = &o

		case "type":
			if err := dec.Decode(&s.Type); err != nil {
				return fmt.Errorf("%s | %w", "Type", err)
			}

		case "version":
			if err := dec.Decode(&s.Version); err != nil {
				return fmt.Errorf("%s | %w", "Version", err)
			}

		}
	}
	return nil
}

// MarshalJSON override marshalling to include literal value
func (s ElisionTokenFilter) MarshalJSON() ([]byte, error) {
	type innerElisionTokenFilter ElisionTokenFilter
	tmp := innerElisionTokenFilter{
		Articles:     s.Articles,
		ArticlesCase: s.ArticlesCase,
		ArticlesPath: s.ArticlesPath,
		Type:         s.Type,
		Version:      s.Version,
	}

	tmp.Type = "elision"

	return json.Marshal(tmp)
}

// NewElisionTokenFilter returns a ElisionTokenFilter.
func NewElisionTokenFilter() *ElisionTokenFilter {
	r := &ElisionTokenFilter{}

	return r
}

type ElisionTokenFilterVariant interface {
	ElisionTokenFilterCaster() *ElisionTokenFilter
}

func (s *ElisionTokenFilter) ElisionTokenFilterCaster() *ElisionTokenFilter {
	return s
}

func (s *ElisionTokenFilter) TokenFilterDefinitionCaster() *TokenFilterDefinition {
	o := TokenFilterDefinition(s)
	return &o
}
